ASTM D 1426 Standard Test Methods for Ammonia Nitrogen In Water
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ASTM D 1426 Document Information:
Title
Standard Test Methods for Ammonia Nitrogen In Water
ASTM International
Publication Date:
Aug 15, 2008
Scope:
These test methods cover the determination of ammonia nitrogen,
exclusive of organic nitrogen, in water.Two test methods are
included as follows:
Test Method A is used for the routine determination of ammonia
in steam condensates and demineralizer effluents.
Test Method B is applicable to the determination of ammonia
nitrogen in the range from 0.5 to 1000 mg NH3N/L directly in
reagent and effluent waters. Higher concentrations can be
determined following dilution. The reported lower range is based on
multiple-operator precision. Lower limits have been obtained by two
of the twelve laboratories participating in the round robin.
Both test methods A and B are applicable to surface and
industrial waters and wastewaters following distillation. The test
method for distillation given in Appendix X1 has been used in the
past to meet requirements for predistillation of samples being
analyzed for ammonia.
The values stated in SI units are to be regarded as standard. No
other units of measurement are included in this standard.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
The distillation method now appears as Appendix X1 and is
provided as nonmandatory information only. The automated
colorimetric phenate method has been discontinued.
Keywords:
- ammonia
- analysis
- calorimetric
- electrode
- water
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